In depth comparison and review of Sennheiser HD 450BT and Sennheiser HMDC 27. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Sennheiser HD 450BT | Sennheiser HMDC 27 |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - wired | |
|---|---|---|---|
| Weight | 238 g | 240 g | Sennheiser HD 450BT are lighter than Sennheiser HD 450BT headphones. |
| Colour | Black | White | - | |
| Recommended Use | - | Professional audio |
| SOUND QUALITY | Sennheiser HD 450BT | Sennheiser HMDC 27 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Foldable | Yes | - | Sennheiser HD 450BT can be folded. |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 5.0 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC, AAC, aptX, apt-X LL | - | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | 8 - 18000 Hz | Sennheiser HD 450BT offer a larger frequency range than Sennheiser HMDC 27. |
| Total Harmonic Distortion (THD) | <0.3% | <0.1% | Sennheiser HMDC 27 have lower total harmonic distortion than Sennheiser HD 450BT. |
| Max Sound Pressure | 108 dB | 128 dB |
| MICROPHONE | Sennheiser HD 450BT | Sennheiser HMDC 27 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Technology | - | Dynamic | |
| Microphone Operation Mode | Beamforming | Hypercardioid | |
| Frequency Response | 80 - 6000 Hz | 40 - 18000 Hz | Sennheiser HMDC 27 offer a larger microphone frequency range than Sennheiser HD 450BT. |
| Microphones Included | 2 | - |
| CABLE | Sennheiser HD 450BT | Sennheiser HMDC 27 |
|---|
| Cable Type | Audio cable - detachable USB-C charge cable - detachable |
- |
|---|
| FEATURES | Sennheiser HD 450BT | Sennheiser HMDC 27 |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | Sennheiser HD 450BT | Sennheiser HMDC 27 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 600 mAh | - | |
| Battery Life | 30 hours | - | |
| Charging Time | 2 hours | - |
| OTHERS | Sennheiser HD 450BT | Sennheiser HMDC 27 |
|---|
| Included Accessories | Carrying case | Wind screen, cable clip, headband padding | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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